E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
Lupus nephritis is inflammation of the kidney that is caused by systemic lupus erythematous (SLE). SLE is an autoimmune disease, in which the body’s immune system attacks its own healthy body tissue. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10025140 |
E.1.2 | Term | Lupus nephritis |
E.1.2 | System Organ Class | 10038359 - Renal and urinary disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
• To evaluate the efficacy of obinutuzumab compared with placebo in adolescent participants (AP) with Class III/IV LN • To evaluate the safety of obinutuzumab and characterize the obinutuzumab PK profile in pediatric patients (PP) aged 5 to <12 with LN |
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E.2.2 | Secondary objectives of the trial |
• To evaluate the efficacy of obinutuzumab compared with placebo (AP) • To evaluate the safety of obinutuzumab compared with placebo (AP) • To characterize obinutuzumab pharmacokinetic (PK) profile (AP) • To characterize obinutuzumab pharmacodynamic (PD) profile • To evaluate changes in fatigue of participants treated with obinutuzumab compared with placebo (AP) • To evaluate change in SLE disease activity of participants treated with obinutuzumab compared with placebo (AP) • To evaluate changes in the quality of life of participants treated with obinutuzumab compared with placebo (AP) • To evaluate the efficacy of obinutuzumab (PP) • To evaluate the immune response to obinutuzumab • To evaluate potential effects of ADA • To evaluate autoantibodies over time (PP) |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Participants who are age 12 to <18 years at the time of randomization Participants who are age 5 to < 12 years (younger patient cohort) at the time of randomization once recruitment is open. (Investigators will be notified by the Sponsor when recruitment is open to this younger population) Ability to comply with the study protocol, in the investigator's judgment International Society of Nephrology/Renal Pathology Society (ISN/RPS) 2003 Class III or IV active LN demonstrated on renal biopsy performed in the 12 months prior to or during screening Positive current or historical test for antinuclear antibody (ANA) and/or antibodies to double-stranded DNA (dsDNA) Class V disease may be present in addition to Class III or IV LN, but participants with isolated Class V disease are not eligible Significant proteinuria defined by a urine protein-to-creatinine ratio (UPCR) above >0.5 g/g based on a first-morning void (FMV) collection at screening During the 12 months prior to or during screening, all participants must have received at least one dose of pulse-range IV methylprednisolone (typically 30 mg/kg, maximum of 1000 mg per dose) or equivalent for the treatment of the current episode of active LN For females of childbearing potential: participants who agree to remain abstinent (refrain from heterosexual intercourse) or use contraception, and agree to refrain from donating eggs during the treatment period and for 18 months after the final dose of obinutuzumab and for 6 weeks after the final dose of mycophenolate mofetil (MMF) For males: participants who agree to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods, and agree to refrain from donating sperm, during the treatment period and for 90 days after the final dose of MMF
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E.4 | Principal exclusion criteria |
• Participants who are pregnant or breastfeeding, or intending to become pregnant during the study or within 18 months after the final dose of obinutuzumab or placebo, or within 6 weeks after the final dose of MMF • Severe, active central nervous system (CNS) SLE, including retinitis, poorly controlled seizure disorder, acute confusional state, myelitis, stroke, cerebellar ataxia, or dementia • Severe renal impairment, as indicated by glomerular filtration rate (GFR) within the past 6 months <30 mL/min/1.73m^2 (estimated using the modified Bedside Schwartz equationor or as indicated the need for renal transplant, plasmapheresis or dialysis at screening • Sclerosis in >50% of glomeruli on renal biopsy • Purely chronic Class III(c) or Class IV(c) disease on renal biopsy, defined as the absence of any active lesions • Presence of rapidly progressive glomerulonephritis • Pure Class V LN • Intolerance or contraindication to study therapies • Receipt of any of the following excluded therapies: – Cyclophosphamide, tacrolimus, ciclosporin, or voclosporin during the 2 months prior to screening or during screening – Any biologic B cell-depleting therapy (e.g., antiCD19, antiCD20, antiCD22) such as, but not limited to, rituximab, ocrelizumab, or ofatumumab within 9 months prior to the Day 1 baseline visit – Any biologic therapy (other than anti-CD19, anti-CD20, anti-CD22) such as, but not limited to, belimumab, daratumumab, ustekinumab, anifrolumab, secukinumab, or atacicept during the 2 months prior to screening or during screening – Oral inhibitors of Janus-associated kinase (JAK), Bruton's tyrosine kinase (BTK), or tyrosine kinase 2 (TYK2), including baricitinib, tofacitinib, upadacitinib, filgotinib, ibrutinib, or fenebrutinib or any investigational agent during the 2 months prior to screening or during screening – Any live vaccine during the 28 days prior to screening or during screening • Active infection of any kind (excluding fungal infection of nail beds) or any major episode of infection requiring hospitalization or treatment with IV anti-infective medications within 4 weeks prior to screening, or completion of oral anti-infectives within 2 weeks prior to randomization • History of or currently active primary or secondary immunodeficiency, including known history of HIV infection and other severe Immunodeficiency blood disorders • History of serious recurrent or chronic infection • History of progressive multifocal leukoencephalopathy (PML) • History of or current cancer, including solid tumors, hematological malignancies, and carcinoma in situ within the past 5 years • Major surgery requiring hospitalization during the 4 weeks prior to screening or during screening • High risk for clinically significant bleeding or any current condition requiring plasmapheresis, concomitant intravenous immunoglobulin use, or acute blood product transfusions • Significant or uncontrolled concomitant medical disease which, in the investigator's opinion, would preclude participant participation • Currently active alcohol or drug abuse or history of alcohol or drug abuse • Any of the following laboratory parameters at screening: - Aspartate aminotransferase (AST) or alanine transaminase (ALT) >2.5Xupper limit of normal (ULN) (for age and sex) that cannot be attributed to underlying SLE - Amylase or lipase >2XULN - Absolute neutrophil count (ANC) <1.5X10^3/microliter - Hemoglobin <8 g/dL, unless caused by autoimmune hemolytic anemia resulting from SLE - Platelet count < 110,000/μL for participants below age 12 and <50,000/microliter for participants age 12 or above - Positive hepatitis B surface antigen (HBsAg) - Positive hepatitis C serology - Positive serum human chorionic gonadotropin measured at screening |
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Proportion of participants who achieve a complete renal response (CRR) at Week 76 2. Incidence, nature, and severity of AEs, Incidence of laboratory or vital sign abnormalities from baseline to Week 76 analysis and serum concentrations of obinutuzumab at specified timepoints (PP) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1. Proportion of adolescent participants achieving a CRR at Weeks 24 and 52 (AP) 2. Proportion of younger age participants achieving a CRR at Week 76 (PP) 3. Proportion of adolescent and younger age participants who achieve CRR with successful prednisone taper at Week 76 4. Proportion of younger age participants achieving overall renal response (ORR) at Week 76 (PP) 5. Proportion of adolescent participants who achieve a complete or partial renal response (PRR) at Week 76 6. Proportion of adolescent participants achieving an overall response (CRR or PRR) at Weeks 24, 52, and 76 (AP) 7. Change in urinary protein-to-creatinine ratio (UPCR) from baseline to Week 76 (AP) 8. Change in estimated glomerular filtration rate (eGFR) from baseline to Week 76 (AP) 9. Time to onset of CRR over the course of 76 weeks (AP) 10. Proportion of participants who experience treatment failure from Week 12 to Week 76 (AP) 11. Change in anti dsDNA titers from baseline to Week 76 12. Change in C3 complement levels from baseline to Week 76 (AP) 13. Change in C4 complement levels from baseline to Week 76 (AP) 14. Incidence, nature, and severity of adverse events, with severity determined according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) from baseline to Week 76 (AP) 15. Incidence of laboratory or vital sign abnormalities from baseline to Week 76 (AP) 16. Serum concentrations of obinutuzumab at specified timepoints (AP) 17. Proportion of participants achieving B-cell depletion, at specified timepoints 18. Change in Pediatric Quality of Life Inventory-Multidimensional Fatigue scale (PedsQL)-Fatigue total score from baseline to Week 76 (AP) 19. Change in Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) from baseline to Week 76 (AP) 20. Change from baseline in Child Health Questionnaire-Parent Form 28 (CHQ-PF28) domain scores from baseline to Week 76 (AP) 21. Proportion of participants with anti-drug antibodies (ADA) at weeks 0, 24, 52 and 76 22. Relationship between ADA status and efficacy, safety, pharmacodynamic, or PK endpoints
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. At Weeks 24 and 52 2-5. At Week 76 6. At Weeks 24, 52, and 76 7-9. Baseline to Week 76 10. From Week 12 to Week 76 11-15. Baseline to Week 76 16. At Baseline and Weeks 2, 4, 12, 24, 26, 36, 52, 64, and 76 17. At Baseline and Weeks 4, 24, 52 and 76 18-20. Baseline to Week 76 21. At Weeks 24, 52, and 76 22. Up to approximately 3.5 years |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Peru |
Brazil |
Canada |
Russian Federation |
South Africa |
United Kingdom |
United States |
France |
Italy |
Poland |
Spain |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of this study is defined as the date when the LPLV occurs or the date at which the last data point required for statistical analysis of safety follow-up is received from the last participant, whichever occurs later. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 7 |
E.8.9.2 | In all countries concerned by the trial months | 6 |